what does mary has for breakfast?这句话翻译正确吗

问题描述:

what does mary has for breakfast?这句话翻译正确吗

What does Mary has(改为have) for breakfast?这句话翻译不完全正确.
这个问句已经加了助动词does表示第三人称单数,后面的谓语动词要改为原形have.